Locking-valve for internal-combustion engines



- A. A. caossLEY. LOCKINGVALVE FOR INTERNAL COMBUSTION ENGINES.

Patented June 21, 1921.4A

APPLlCATION FILED lFEB-.18 |920.

jg 26 1 y .1 1 iv/wy f i2 STATES AUSTIN A. CRSSLEY, F LUTHER, OKLAHOVA.

LOCKING-VALVE FOR ENTERNAL-CMB'USTION ENGENES.

Specification of Letters `iatent.

Patented June 2 1, 1221.

Application filed February 18, F320. Serial No. 359,713.

To all whom t may concer? Be it known that l, AUSTIN fi. C citizen of the United States, residing at Luther, in county of Oklahoma and State of Oklahoma, have invented certain new and useful improvements in Locking-Valves 'ier lnternal-Uombustion Engines, of which the following is a specification.

T his invention relates to an improved locking valve for motor vehicles and has as one of its principal objects to provide device of this character whereby the flow of fue] gases from an engine carbureter to the engine of a motor vehicle may be prevented for thus in turn preventing` unauthorized operation of the vehicle.

rilhe invention has as a further object to provide a device wherein, when the valve of the device is locked in closed position, the valve will itself serve to loclr the fastenings securing the device in place so that removal of the device when locked will be prevented.

And the invention has as a still further object to provide a device which may be employed in connection with substantially any conventional type of internal combustion engine.

@ther and incidental objects will appear hereinafter.

ln the drawings:

Figure 1 is a side elevation showing my improved device interposed between a conventional type of carburetor and engine intake manifold,

Fig. 2 is a fragmentary sectional view taken Inedially through the device, the valve of the device being open,

Fig. 3 is a vertical section on the line 3-3 of Fig. 2, and looking in the direction of the arrows,

Fig. l is a fragmentary perspectif-.fe view showing the mechanism employed for actuating the valve, and

Fig. 5 is a detail perspective view of one of the fastening devices employed for se- Curing the device in active position as shown in Fig. 1.

Referring more particularly to the drawings, l have shown my improved locking valve in connection with a conventional. type of engine intake manifold and carburetor 11. ln carrying the invention into eilect, I employ a valve casing which is formed of mating sections 12 and 13 respectively, the section 12 being in the nature of a body section and the section 13 a cover plate thereslidable for. The section 13 is detaehably secured to the section 12 by screws or other approved fastening devices and formed in the section 12 is, as particularly shown in Fig. 3, a vertical recess 1li. intersecting this recess is a gas passage 15 through the casing and vithin the recess is a valve 1G. The recess is provided with a reduced lower end portion in which is countersunk a plate 17, this plate being provided at three of the sides thereof with side flanges coacting` with the walls of the recess. Struck from the plate are stop lugs 2O and 21 respectively and mounted upon the section 12 to project at its inner end through the plate is a lock casing 22 which rotatably receives the lock barrel 23 operable by a key 24. rllhe inner ond of the barrel is, as shown in detail in Fig. 1i, provided with a reduced extension which rotatably receives a collar 26 having a radial arm 2? and an oppositely directed stop lug 28. Screwed or otherwise secured aga-inst the end face of the extension 25 is an end plate 29 provided with a radial lug 30, it being observed that the arm 27 is offset laterally from the collar 26 so that the lug '30 may coact with said arm. Extending between the free end of the arm and the valve 16 is a connecting rod or link 81 pivotally connected to the arm and valve.

fis will now be observed, the upper end portion of the casing of the valve formed te iit between the confronting flanges Vof the manifold 10 and carburetor 11 mating therov-.fith and engaged through these flanges and through the using are bolts 32 securing the device in position with the gas passage 15 registering with the passages of the earbureter and manifold, the bolts being inserted first through the flange of the manifold and threaded into the flange of the earbureter. is particularly brought out in Fig. 3, the recess 14 of the section 12 of the valve casing intersects the bolt openings through the easing and the bolts are provided with reduced squared portions 33 which, when the bolts are in place, lie at opposite sides of the recess, the bolts being so positioned that one of the flat faces of each of these squared portions alines with one of the end walls of the recess so that the valve 16 may shift freely between the squared portions of the bolts. Consequently, by turning the key 2a in one direction, the lug upon the plate 29 of the lock barrel will be moved to coaet with the arm 17 for rotating the collar 26 and consequently swinging the arm 27 for shil'tinp` the valve 16 downwardly to closed position blocking` the passage 15 through the valve casing, this movement of the lock barrel being` limited by engagement of the lug 28 of the collar with the stop lug 21 of the plate 17. rlhe key 24 may then be removed when the valve will be locked closed for preventing liow of fuel mixture from the carburetor through the intake manifold to the vehicle engine. Operation of the engine will thus, of course7 be prevented to in turn prevent unauthorized use of the vehicle. llhen the valve 16 is thus closed, it will be seen that the ends of the valve will closely confront the inner vertically disposed {iatfaces of the squared portions 33 of the bolts 32 so that the valve will then coact with these squared portions of the bolts to prevent countenrotation and removal of the bolts. The valve will therefore serve to locl; the bolts againstdisplace ment and accordingly lock the device in place between the carbureter and manifold so that the device cannot be removed for effecting operation of the engine. By rotating the lock barrel in a direction opposite to that first described, the arm 27 will be swung,- for openingv the valve when the 'lug QS of the collar 26 will abut the stop lug 20 of the plate 17. rlhe hey 2d may then be removed when the valve will be locked open. lt will accordingly be seen that I provide a particularly effective device for the purpose set forth and a device which may be readily employed in connection with substantially any conventional type of vehicle engine intake manifold and carburetor. Hinged to the casing section 12 is a cap 3d which, when the key is removed, may be swung` to closed position housing the outer end of the loclr casing and a suitable packing is preferably arranged within the cap for closing the keyhole of the lock. Thus, when the valve is locked open and the key is displaced, entrance of air through the lock to cause dilution of the fuel mixture will be prevented.

Having thus described the inventionz what is claimed as new is:

1. A device of the character described including a valve casing having,` a gas passage therethrough, a valve slidable within the casing, a loch carried by the casing` and provided with a rotatable lock barrel, a collar freely mounted on the barrel and provided with an armi an operative connection between the arm and valve, and a plate fixed to the barrel and provided with a lug,` engageable with the arm whereby the lock barrel may be operated for shifting the valve to closed position blocking` said passage.

2. A device of the character described including a valve casing, rotatable means for securing the valve casing in active position, and a valve within the casingmovable to closed position locking said means against rotation.

3. Vdevice of the character described including valve casing, a bolt extending through the valve casing' for securing' the .casing in active position7 and a valve within the casing movable to closed position locking the bolt against rotation.

4. A device of the character described including a valve casing, a bolt extending through the casing for securing the casing` in active position and provided with a fiat face, and a valve within the casing1 movable to closed position conirontinn` the flat face of the bolt for loclrirg,` the bolt against rotation.

5. A device of the character described including a valve casing., bolts extending tirough the valve casing Aand providezil with reduced squared portions., and a valve with in the casing movable to closed position extending between the squared Aportions of said bolts to coact with the adjacent llat faces thereof for locking' the bolts against rotation.

6. rThe combination with an intake manifold and carbureter of a valve casing interposed therebetween, means securing the valve casing in position, and a valve slidably movable to closed position within ther casing coacting with said means for locking` the casing against chsplacement.Y K

7. A@device of the character described including a. valve casing, Vmeans for securing AUS'llN A. CROSSLEY. [Ls] 

